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(No Model. 4 sheets-sheer, 1.

W'. E. `DNI-TON. MACHINE yEOE' GEOOVING SEWING MACHINE NEEDLES, y N0.351,900. .Patented Nov. 2, 1.886.

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(No Model.) 4 sheets-sheet 3* W. H. DAYTON.

MACHINE FOR GROOVING SEWING MACHINE NEBDLES. No. 351,900. I PatentedNov.- 2, 1886.

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W. H. DAYTON.. MACHINE EGE GEooVING SEWING MAGE'INE NEEDLEs.

"N0..35I,Goo. Patented NW2, 1886.

Jaw y E UNITED v.STATES PATENT OFFICE.

WILLIAM H. DAYTON, OF TORRINGTON, CONNECTICUT, ASSIGNORTO-THE EXCELSIORNEEDLE COMPANY, OF SAME PLACE.-

MACHINE FOR GROOVING SEWING-MACHINE NEEDLES.

SPECIFICATION forming part of Letters Patent ITo. 351,900, datedNovember 2, 1886.

l 'C Application filed March 524, 1886. Serial No. 196,314. (No model.)v

To @ZZ whom it 'may concern,.-

Be it known that I, WILLIAM H. DAYTON, of Torrington, in the county ofLitchfield and State of Connecticut, have invented an Improvement inMachines for Grooving Sewing- Machine Needles, of which the following isa specification;

Letters Patent No. 245,356, Igranted to the Excelsior Needle Company, asmy assignees, represents aI machine fo'r grooving sewingmachine needles,and so far as the cutters and the mode of operating the same and the de-Avices for clamping the needle the parts of my present inventioncorrespond to those in said patent, and similar letters of reference areplaced thereon; hence these parts donot needl to be further described,except to show their connection with the present improvements.

My present improvements relate to devices for supplying theneedle-blanks automatically into the holding-dies, and also to means.Vfor supporting the shank of the needle at the commencement of thegrooving operation, and to means for removing the needle from the hold-Y ing-jaws after it has been grooved.

In the drawings, Figure 1 is a vertical 1011- gitudinal section ofthemachine. Fig. 2 is a plan. Fig. 3 is an inverted plan; and Fig. 4 across-section at the line w rv, Fig. 1. Fig. 5 is a separate viewshowing the cam, pin, and secondary lever, which actuate theclampingjaw; and` Fig. 6 is a separate view of the cam for actuating theholding and delivery ngers.

The bed A of the machine receives upon it the slides c, in which themoving'bed bis sup-.

ported, and upon this are the jaws dd', that are grooved upon theiradjacent surfaces for the reception of the needle-blank, and lc kare thecutters for'grooving the needles. The bed b is reciprocated by the cam Don the main shaft E, and at F is the driving-shafarwith a worm-pinion,G, Vmeshing with the wheel HY upon the said main shaft E. The bevel-gearI upon the driving-shaft F gives motion to the -bevel-gear K anditsshaft, and to the worm-pinion L and worm-wheel M, upon the shaft 12,whereby I am enabledto actuate the machine by power, so that the shaft12,wheels r, and other parts that operate to move the cutters up totheir work may act in harmony with the reciprocating movement given tothe bed b, and the jaws d d', carried by the same;

vThe jaw d is at the end of a lever, di, pivoted at di, and upon theshaft 12 is a cam, c, that acts upon a vertical pin, e5, and this restsupon 011e end ofthe secondary lever e6, that is piv'oted at e* on thebed b,-and the other end of this secondary levereG is beneath theadjusting-screw e7, that passes through the lever d2,

so that when the cam e3, acting upon the pin e5, presses upon thesecondary lever e, the rear end is vraised and the lever d2 moved so asto press the grooved jaw d down upon the needle-blank and hold thesaine. Vhen the cam eli-releases this lever e, the spring eE opens thejaws. The cam e3 is so made as to cause the Y lever dzand its jaw d tograsp the needle-blank after the same has been properly placed betweenthe jaws and before the cutters 7c k are moved up and the groovingcommenced.

"One of the principal features of my present invention relates to themeans for supplying the needles. I employ a feed-wheel, O, uponavertical stud, OV', that is upon the sliding bed P, and there are waysor slides P upon the bed A to sustain the sliding bed P. This feedwheelO is made with radial grooves in the iiat upper surface, and over eachof these radial grooves is a spring-finger, p, the end of which isrounding or bent up, to facilitate the insertion of the shank of thesewing-machine needle-blanks into such grooves. The feed-wheel O isrecessed in lits upper surface, and the grooves are in the upper edge ofthe annular rim of the wheel, and within the said recess is the flatring or disk O2, the edge of which forms a stop for the Shanks of thneedleblanks. f

The attendant places the Shanks of the needle-blanks into the radialgrooves in the feedwheel, and the sliding bed P is moved forward at theproper time by the cam Q on the main shaft E, said caniacting upon theroller q, be-` neaththe bed P, and the needle-blank that is in line withthe jaws d d is passed into the same, and the jaws are closed to holdthe needle-blank, as before described, and the bed P and feed-wheel aredrawn back, leaving the needle in its proper position for being grooved.In orderto revolve the feed-wheel O pro- ICO gressively and to hold thcsame firmly while being moved toward and from the jaws d d', I make useof a pawl, R, pivoted at R upon a link, R2, the other end of which linkis secured by the screw r to a projection from the bed l?. The end ofthe pawl R' is adapted to enter successively within the vertical notchesupon the periphery of the feed-wheel O, and there is an incline, S, thatacts upon a roller, s', upon the under side of the link R2, and there isa gude-bar, s?, with an inclined end corresponding to the angle of theincline S. The distance between the incline S and the inclined end ofthe guide bar 5* corresponds to the diameter of the roller s'. Theoperation of this part is that as the bed l? is reciprocated and thelink R2 and pawl R' are moved back and forth the incline S swings thelink and pawl'to cause said pawl to slide over the periphery of thefeed-wheel and drop into the next notch, and when the bed l? is moved inthe other` direction the inclined end of the guide s2 causes the link R2and pawl to turn the feed-wheel around one division and bring anotherneedle-blank into line with the jaws d d', and the straight' side of theguide s being parallel with the central line ofthe machine, thefeed-wheel is not turned while being moved after the roller s passesupon the straight portion of the guide s2.

After the needle-blank has been introduced between the jaws d d' andclamped by the same it is important that the shank of the needle-blankbe steadied during the commencement of' thc operation of the cutters,because only one cutter acts upon one side of the needle-blanks at thecommencement of the grooving, and the needle-blank is liable to be bentby the pressure of the cutter against the side of t-he blank at thejunction of the needle with the shank, or the groove to be made rough bythe chattering under the action of the cutter. To obviate thisdifficulty and also to remove the needle blank when it has been grooved,make use of holding and delivery fingers T T', to which a compound.movement is given by the devices next described.

Upon the bed A is a tubular stud, U, and around this is a cani, U', thecam-surface Of which is upon the upper end, and this tubular caln can beraised or lowered upon the stud to adj ust the same, and it is held byaclampingscrew. Thronghthe tubular stud is a tubular stock, V, at theupper end of which is ajaw, V', that rests upon the top of the tubularstud U. Vithin the jaw V' is received the back end of the holding-fingerT, the finger being attached to the jaw by pivots, so that the fingercan be swung up and down between the sides of the jaw. The finger T' ispivoted at t to the jaw T, and there is a spring, t', that acts to raisethe finger T' and open the fingers. Passing through the tubular stockVis a rod, Y, the upper end of which is beneath the rear end of thefinger T'. Below the bottom end of this rod Y is a lever, Y', pivoted atY2,

and having an adjusting-screw, y, to act directly upon the bottom end ofthis rod Y, and there is a cam, Y, upon the driving-shaft E, that actsagainst a roller, Y", upon the lever Y'. The shape of this cam Y3 issuch that it will raise the rodY and close the fingers T T' at theproper time, or release the parts and allow said fingers to be opened bythe spring t. At the bottom of the tubular stock V is a pinion, V2, andV3 is a toothed sector upon a pivot, V, and there is a roller or stud,V5, against which cams V Y upon the drivingshaft act. The cams beingproperly shaped and timed, the operations are as follows: The cani V,acting through the toothed sector V3, partially revolves the pinion V2and tubular stock V and swings the fingersTT' toward the folding jawsdd'. At the commencement of the movenient the fingers are above thefeedwlieel O, and are held up by the cam U'. As the fingers swing clearofthe feed-wheel O, they are lowered at their outer ends by sliding downthe cam U', and at this time the open ends of the fingers are at thelevel ofthe shank of the needle and swing along horizontally, passingabove and below the said shank. The cani Y now acts, and by the lever Y'and rod Y closes the fingers, grasping and holding the shank of theneedle while the cutter k is pressed up and commences to groove theneedle at one side. As soon as the cutter has cut in the full depth ofthe groove on one side the bed b commences to move endwise. At thismoment the cam Y ceases to act, and the fin' gers T T' are loose, andthey swing back as the ends of the jaws d el' move along against them.Vhen the needle has been entirely lOO grooved and thej aw d'liberated,aproj eetion of Io 5 the cam Y3 again acts upon the lever Y'and rod'Y to close the fingers T T' and grasp the shank of the groovedneedle-blank. The cani V7 now acts, and by the toothed sector V3 andpinion V2 turns the tubular stock V, swinging the fingers T T' aroundand drawing out the needle-blank, and in this movement the portion ofthe finger T that rests upon the tubular cam U'runs up the inclinedsurface of said cani, and the fingers are raised so as to carry theneedle-blank up above the feed-wlieel O and swing the same entirelyclear therefrom. The cam Y3 now ceases to act, the spring t' opens thelngers,'the needle-blank drops away from the same, and the operations arerepeated.

I claim as my invention*A 1. The combination, with the jaws for holdingthe needle-blank, and the cutters and mechanism for grooving the saine,ofa feed-wheel having radial notches and spring-fingers for holding theShanks of the needle-blanks, and a studand sliding bed for sustainingand moving the feed-wheel, substantially as specified.

2. The combination, with the jaws forholding the needle-blank, and thecutters for grooving the same, of' the secondary lever e", shaft l2, came, and adj listing-screws, substantially as set forth.

3. The combination, with the clamping- IIO A'and grooving-cutter, of afeed-Wheel for supplying the needle-blanks, fingers for holding theshank of the needle-blank at the commencement of the groovi'ngoperation, and for withdrawing and delivering ythe needle-blank, and themechanism, substantially as specified, for giving motion to therespective parts.

5. The combination, With the feed-wheel, of asupporting-stud, a slidingbed, apawl, a link, a roller connected with the paw), an incline formoving the pawl and turning the feedwheel, and a guide parallel with theaxis of the machine for allowing an eudwise movement to be given to thesliding bed to pass the needleblank into the holding -jaws Withoutturning the feed-wheel, substantially as set forth. Y

6. The combination, with the holding and delivery fingers 'l T', of atubular stock to y 3o which such lingers are connected, a rodpasslingers, and a cam and lever to act upon such rod, substantially asset forth.

7. The Combination, with the holding and delivery fingers, of a camandmechanism `to close such fingers, a stock for supporting suchlingers, a pinion on the stock, and a toothed sector and vcams forturning the stock and svvingingfthe fingers laterally, substantially asset forth.

8. The combination, with the holding and delivery fingers, of thetubular stock and j aw, the tubular stud for supporting the same, thetubular cam around the stud for raising and lowering the fingers, andmechanism, substantially as specied, for opening, closing, and swingingthe fingers, as set forth.

9. The feed-Wheel O, having a rim around its edge and radial grooves inthe same, in combination with the spring-ngers at the grooves forholding the needle-blanks-and the separate disk or flat rim within thefeed-wheel, forming an abutment for the ends of the needleblanks,substantially as set forth.

Signed by me this 10th day of March, A. D. 1886.

WILLIAM H. DAYTON.

Witnesses:

, GEO. T. PINCKNEY, WILLIAM G. MOTT.

